When using dichloromethane as a solvent, which would make a good, yet cost effec
ID: 798372 • Letter: W
Question
When using dichloromethane as a solvent, which would make a good, yet cost effective, drying agent?calcium sulfate?
Silica gel?
Ethyl alcohol?
Acetone?
Potassium Chloride?
When using dichloromethane as a solvent, which would make a good, yet cost effective, drying agent?
calcium sulfate?
Silica gel?
Ethyl alcohol?
Acetone?
Potassium Chloride?
When using dichloromethane as a solvent, which would make a good, yet cost effective, drying agent?
calcium sulfate?
Silica gel?
Ethyl alcohol?
Acetone?
Potassium Chloride?
When using dichloromethane as a solvent, which would make a good, yet cost effective, drying agent?
calcium sulfate?
Silica gel?
Ethyl alcohol?
Acetone?
Potassium Chloride?
Explanation / Answer
Calcium sulfate
Available commercially as Drierite. It forms the hemihydrate, 2CaSO4.H2O, so that its capacity is fairly low (6.6% of its weight of water), and hence is best used on partially dried substances. It is very efficient (being comparable with phosphorus pentoxide and concentrated sulfuric acid). Suitable for most organic compounds. Solvents boiling below 100